Lug-strap holder



A. A. LAFAYETTE.

LUG STRAP HOLDER.

APPLlCATlON FILED FES. 12, 19214 Patented Apr. 26, 1921.

A TTORNEY.

ALBERT A. LAFAYETTE, OF LAWRENCE, IVIASSAGHUSETTS.

Specification of Letters Patent.

LUG-STRAP norman.

Patented Apr., 2G, 1021.

This invention relates to supports for what is known as lug straps on power looms. Such lup; straps give motion to the picker l stick and must be supported, preferably in adjusted relation thereto.

Lug straps are now generally supported by what is known as power straps, which consist of a strip ofleather attached to the picker stick by means of a screw.

The constant pounding of a picker stick makes it break frequently and the screw oii' the power strap weakens it.

The purpose of my device is to provide a holder for a lug strap which will strengthen instead of weaken the picker stick, which can be adjusted with great nicety, and which clasp's the picker stick with a soft, firm grip, thus Strengthening the picker stick and preventing the lug .strap holder from being shakenlout of position. i a

In the drawings, Figure 1 is a side ele vation of my holder, including the lug strap support in place on a pieker stick, the lug strap being shown partly broken away. Fig. 2 is an elevation 'from the right of Fig. 1, the lup: strap being shown partly broken away. Fig. 3 is a sectional view of the clamping device from the left of line 3-3 of Fig. 1. Fig. 41 is a detail elevation showing another form of clamping nose and altering means. Fig. 5 is an elevation similar to Fig. 2 showing' another form of lug strapsupport. Fig; 6 is a perspectiveview of another form of lug strap support. Fig. 7 is a sectional elevation showing a slight modificationvof the connecting member and nut.

lin the drawings, a A 'represents a picker stick of the usual construction and B represents a laug strap, also of the usual construction. \a i C represents a supportior the lug strap B which "Inaybe made of thick leather or fiber or other suitable material; It consists of a shank or back-bone 1 which is the same width as the picker stick and extends outward at the top in the form of arms 10, and at another point a distance below 10 equal to the height of the lug strap in the formof arms 11, so that the lug strap i3 Wlll be confined between the top arms 10 and the middle arms 11.

As shown, there is a tail 12 or bottom extension with bottom arms 13 and a reinforcing plate Mot such size as to permit my clamping member F to support it in a manner to be described.

I My clamping member' F is a U-shaped metal yoke comprising parallel arms 20 spaeed apart a distance to readily embrace the picker stick and connected at what might be called the front by a connecting member 27 through which-is a hole 28 for the passage of a screw 23 fixed to` a bow spring 21 shown clearly in Fig. 1.

A nut 22, preferably of the form and of such size as to fit in between arms 20, 20, preferably has projections at'the top and bottom' 29 whereby it can slide back and forth between arms 20, 20, but cannot possibly turn.

This nut 22 is threaded to receive the screw 23,` and it is obvious that by removing the spring 21 with its screw 23 and nut 22, the distance from spring' 21 to the nut 22 can be altered at will, and when put baek in position it is impossible for the ::int to unscrew or for the relation between the bowspring 21'and connecting member 27 I to change. Thereby an elastie connection between the clamp F and pieker stick A can be maintained at the front. a

Near the 'free end of each arm 20 is an angular slot 24: which has an open mouth at the top and extends down and out at 25, the end of 25 being formed ona proper curve to receive a pivot ear 31 of a clamping nose 32. As shown in Fig. l, 'this clamping nose 32 is provided with a suitable fixed handle 33, and the pivot ears 31 preferably have heads`26 to hold the free ends of arms 20 togetherowhen the device is in position. To attach clamp F and put the spring 21 in position, it is slippe d over the pieker stick A in the desired` position, arms 20, 20

passing by the tail 12 of lug strap support ,pass into the part 25 of the slot, and the nose bears against reinforcing plate 14c`on 'yoke havin tail 12 of support C. The motion is continued until the handle 83 comes almost to the picker stick, the nose 32 beingin dead center relation between ears 31 and the picker stick.

As shown in Fig. 4, I may use a clamping nose 50 with suitable ears 51, but instead of a permanent handle I may have .in place thereof a hole 52 to receive a handle 53 which can be inserted in 52 to turn the nose into position and then can be removed.

In place of the Ing strap support C, I can nse a stirrup arrangement shown at H in Fig. 5, having the lower part 12 and 13 similar to C, bnt the upper part made with parallel arms 4]. and 42 connected at the top by a bar 40. In this case, the' lng` strap B passes between 4:1 and the picker stick and 42, and the picker stick is being held down by bar 40 and up by the body 43.

Another form of lng strap support is shown in Fig. 6 consisting of a continuous strin of leather K having' a middle portion 60 and two sets. of projecting arms 61, 61, two tails 12, 12 and two sets of end or bottom arms 13, 13, which can be brought together as shown to form a taih so that the arms 20, 20 can pass between 61, 61 and 13,

13, thereby holding the devi e in place while the loop 60 extends npward in such manner that the ing strap B can pass through it.

In 7, I show a slight modification in which the spring 21 has a somewhat shorter screw 71 which enters into a threaded hole 72 in a nnt 70, which may he slightly thicker than 22, hut does not pass therethrongh. In this case the connecting member 27 need not have a screw passage 58.

It will be observed that the ends of bow spring 21 which bear against the picker stick A may be ronnded or more or less tlattened., that they neither bite into the wood nor form a sharp angle which would ten to weaken the picker stick.

I prefer also to make the lng strap support, or r at any rate the supporting tail thereof shown at 12, of some compr ssihle material like leather, whereby it coperates with the how spring andthe clamping nose. The whole holder is firmly but resiliently held on the picker stick.

I claim:

*1. The combination in a lngstrap holder of a support :tor the lup` strap which extends along the back ot the` picker stick and has a compressible tail; with 'a U-shaped metal a connect-ing memberwith a screw passage therethrongh, and parallel arms which embrace the picker stick and the tailof'said support, each of said arms hav ing corresponding open mouthed angular slots nea its free end; a bow spring` between said arms, the connecting member and the picker stick which carries a fixed screw which projects through said screw passage; a nnt for said fixed screw which fits between said arms; a removable clamping nose with pivot ears which fit in said angnlar slots; and means to turn said nose on said ears as givots so as to compress said tail. a

2. Th combination in' alngstrap holder of a support ;for the lng strap which extends along the back of the picker stick and has a tail; with a U-shaped metal yoke having two parallel arms which embrace the picker stick and the tail of said support, each of said arms having corresponding open mouthed angular slots near its free end, and a connecting member. having a screw passage 'therethronghg a bow spring between said arms the connecting member and the picker stick which carries a fixed screw projecting through said screw passage; a nnt for said fixed screw which fits between said arms; a removable clamping .nose with headed pivot ears which fit in said angnlar slots; and removable means to turn said* nose on said ears as pivots. r

3. The combination in a lng strap holder of a support for the ing strap which eXtends alona' the back of the picker stick and has a tail; with a U-shaped metal yeke having a connecting` member with a screw passage therethrongh,, and parallel arms which'embrace the picker stick and the tail of said support, each of said having corrcspending` open monthed angnlar slots near its ree end; a bow spring between said arms., the connecting member and the picker stick which carries a fixed screw which projects through said screw passage; a. nut for said fixed screw which its between said arms; a removable clamping nose with pivot ears which fit insaid'angnla r slots; and means to turn said nose on said ears as pivots. H

The combination in aing' strapholder of a support for the ing strap; with a U- sh'aped metal yoke having :a connecting member and parallel arms whichemhrace th picker stick and said support, each of sain arms having near its free end an' open monthed angular slot; a bow spring between said arms, the connecting member andthe picker stick which carries a fixed screw; a nnt for said fixed screw which its between said arms; a removable clamping nose' with pivot ears which 'fit in said angnlar slot; and means to turn said nose on said ears 'as pivets. r r

ALBERT AL LAFAYETTEL 

